Oneida I. nice I'islus 



Tablb No. 13. Pood of Piice Pebcr is Certain Wisconsin Lakes, as Oetermineo by 

 A. S. Pbarse 



Publication Locality 



by i in ' 



Pearse I Wisc-onsin 



Number 

 offish 

 studied 



'21a, p. 4.S. . .! 



'21a, lip. 31- I-akc Popin. 



I 

 '21a, pp. 39.' Lake Pepin. 



3' I 



' I X, p. 275. .. . Lake Mcnona . . 

 '18, p. 273. . . I.aki- Waubtsa. 



Aug. 13-34. 



1920 

 June 25- 



July 10, 



1920 

 July 25. 



1920 



Sept. 15. 



1915 

 Nov. 14, 



8J-12 2>' 



i3-><i5 :■> 

 2 (avi-. 



210- 



Chironomid 

 pupae, I3<;i 

 cntomosira- 

 cans, 56rc'. 



Rana pipiens, 

 11.1%. 



(irt-i-lcv (27, p. 64) .studied the food of seven I'ike I'erch 13--V inches long, 

 from the Genesee System in New York State, and found youiiK Perch, suckers 

 and minnows fonnin>; about four-fifths of the food, while aquatic insects com- 

 prised the reniainiler. 



I'vermann and Clark ( '20. p. ji/)) found fish in the stomachs of Tike Perch 

 from Lake Maxinkuckec. Twenty- four were examined in which the fcxKl con- 

 sisted only of fish, hiU s()ecific determinations could not he maile due to advancetl 

 dijjestion. I.eech ("27. p. 4) says that the main fo<Kl of Pike Perch in I -ike Krie 

 is the lake shiner, which abounds in these waters. (Kcasionally crawfish in the 

 winter and insi-cts in the warmer months. The shiner referred to is prokibly 

 Notropis alhcrittoidcs. and the note on the f>>o<l evidently ajiplies to both the Hiue 

 and the Yellow Pike Perch. 



riemens. Dymond and Hi^'elow ( '-W P- '^4: -4. PP- i-Jtj-i^o) made a very 

 careful and thorouKh study of the foo<l of Sl'tzostcdw» x-itrcum. liased on 78 

 specimens from l.ake Xipijion. Three of the fish were very younj;. I:^-i"m 

 inches, and had taken entonmstracans of four Kcnera. Dapluiui. Cyclops, nosiniiut. 

 and F.pisthura. I'ish remains were found in two of the jiike and Chironomid 

 larvae and pu|)ae in one. I'".leven medi»»n-si/e Pike Perch u inches lonj; !ud iK-en 

 fcedinj; largrly on insects ; seven ha<l eaten fish, of whicii one was a ressellntrd 

 Darter, one a Coitus and sixteen were Nine-spiiui! Sticklekicks { I'liiuiiliiis 

 puiiiiilius). The insects were immature stages of Triclioptera and Kphemerida. 

 The smallest one of the Uit. 4' i inches UmR. hail eaten entomustracans and chirono- 

 mid pup-ie. The other (<j fish were more than a fiH>t long, the largest In-ing jj' i 

 inches. In these, fish was the priiicijial item of foo<l. liscoes were present in J4 

 of the pike. Other fish identified as fcMwl of these larger pike were (.'onunon 

 Wliitefish (Corffjoinis clupiuiformis) (in one Pike), Ninr-spinnI Sticklclwck 

 (Pungitius pungitius'). Trout Perch (Pcrcopsis otnisco-inaycus). Perch iPrna 

 flirrscrus). Pike Perch (.V. tiVrciiMi). and some c<>tlt«ls. 



The Ciscocs. so far as thov could lie i«lentifie<! froni stomach contents, were 



